Bois de Kermeur and the banks of the Bélon

This route combines a countryside section through small villages with the Bois de Kermeur, where you will discover the Fontaine Sainte-Thumette and the long covered walkway of Kermor Bihan.
The return journey follows the left bank of the Bélon, a major oyster farming area.

Details

1233808
Creation:
Last update:
Last review:
  • Walking
    Activity: Walking
  • ↔
    Distance: 12.01 km
  • ◔
    Average duration: 3h 40 
  • ▲
    Difficulty: Moderate

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 81 m
  • ↘
    Descent: - 90 m

  • ▲
    Highest point: 50 m
  • ▼
    Lowest point: 1 m

Photos

Description of the walk

(S/E). With your back to the car park and facing the entrance to the Manoir de Kertalg, take the road towards Pont Guily and follow the path on the left-hand side of the road through the grass.

GR®34markings: White and red

Turn left onto the coastal path that initially runs alongside Anse de Kerascoët. Go down a series of steps on the left bank of the Bélon, then back up again. The path gradually moves away from the river and climbs into the woods, arriving at an intersection.

No markings

(1) Leave theGR® trail straight ahead, follow the path on the left (signposted 'parking') and arrive at a new car park near a fitness trail.

(2) Cross the car park and continue along a path through the woods to the Kergoulouët menhir.

(3) Turn left to join a road, take it to the left until the road bends.

Markings: Mountain bike signpost and yellow at the rear (opposite direction)

(4) At the bend, leave the road and continue straight ahead on a wide path that borders fields and meadows, turning right and then left a few dozen metres further on. You will reach a dead-end street. At the signpost, turn right and continue along the path until you reach a road at a place called Lann Kersaux. The path joins the road at the gable end of a house decorated with a fresco made of small pebbles.

(5) Turn left, follow the road and cross the imposing hamlet of Kersaux.

(6) At the crossroads in the centre of the hamlet, turn right onto Route de Sainte-Thumette, signposted as a dead end, and walk downhill for a few hundred metres until you see the sign for Fontaine Saint Thumette on your left.

(7) At the barrier, turn left to descend to the Fontaine Sainte-Thumette, an idyllic setting for a break. After the fountain, at the crossroads, turn left onto a path that goes uphill (see shortcut in the practical information) and arrive at a cross path.

Markings: Mountain bike signpost and yellow sign at the back (opposite direction)

(8) Turn right and continue along the path at the edge of the woods. As you approach Kermeur Bihan, the path turns left at a right angle between meadows. At the first intersection, continue straight ahead then turn right onto the path to rejoin the road.

No markings

(10) Turn right, leaving the marked trail to continue to the left, and cross the hamlet (old stone houses). At the exit, take the carriageway (no entry sign except for municipal services and authorised agricultural vehicles). Pass the farmland and shortly after returning to the wooded area, a path on the right leads to the Kermeur Bihan covered walkway, a beautiful 16-metre-long structure.

(11) Return to the wide path and continue until you reach a slipway offering a beautiful view of the port of Bélon on the left and the river on the right.

GR®34signposting: White and Red

(12) At the signposts (Kermor Bihan slipway 2km), turn right onto the coastal path towards Pont Guily. This shaded path overlooks the Bélon at the edge of the Bois de Kermeur. This part of the river is specialised in oyster production and you can see several establishments on both banks. The path alternates between small ascents and descents with a few log staircases. There are few markings, but there is only one path. Before the Sainte-Thumettre cove, the path from the fountain joins from the right (shortcut signposted).
Continue up the left bank of the river until you reach a road leading to an oyster farm.

(13) Cross over and continue along the path almost opposite, which offers views of various coves on the other bank. Walk along Anse de Kertanguy and then Anse de Kérascoët.

(1) At the sign indicating the car park on the right, follow the same route as on the way out (signposted Pont Guily 1km) and continue to the car park opposite the entrance to the Kertalg manor house (S/E).

Waypoints

  1. S/E : km 0 - alt. 16 m - Car park at Pont Guily
  2. 1 : km 1 - alt. 31 m - Crossroads of the circular
  3. 2 : km 1.27 - alt. 41 m - Car park
  4. 3 : km 1.74 - alt. 47 m - Kergoulouët menhir.
  5. 4 : km 2.04 - alt. 48 m - Hameau de Kergoulouët
  6. 5 : km 2.96 - alt. 45 m - Decorated gable
  7. 6 : km 3.43 - alt. 46 m - Hamlet of Kersaux
  8. 7 : km 3.74 - alt. 30 m - Fountain fork
  9. 8 : km 3.93 - alt. 34 m - Fork
  10. 9 : km 5.02 - alt. 42 m - Turn right at the road
  11. 10 : km 5.72 - alt. 21 m - Kermeur Bihan covered walkway - Allée couverte de Kermeur Bihan
  12. 11 : km 5.9 - alt. 9 m - Directional signs
  13. 12 : km 7.67 - alt. 17 m - Anse de Sainte-Thumette - Bélon (fleuve)
  14. 13 : km 7.94 - alt. 9 m - Crossing the road
  15. S/E : km 12.01 - alt. 16 m - Car park at Pont Guily

Notes

Picnic table at the starting point car park.
Most of the route is shaded.

Shortcut possible: from the Fontaine Sainte-Thumette fountain, you can go directly to point (12) to return to the car park. This option is a route of approximately 8.5 km.

NB: I have used the spelling "Bélon" as it appears on the map, but locally it is pronounced "Belon"

Worth a visit

Always be cautious and plan ahead when you're outdoors. Visorando and the author of this route cannot be held responsible for any accidents occurring on this route.

The GR® and PR® markings are the intellectual property of the Fédération Française de Randonnée Pédestre.

Reviews and comments

4.7 / 5
Based on 14 reviews

Reliability of the description
4.7 / 5
Ease of following the route
4.6 / 5
Route interest
4.8 / 5
User 16039533

Overall rating : 5 / 5

Date of your route : Apr 11, 2026
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A lovely walk with varied scenery. A stunning covered walkway halfway along the route is not to be missed, with its two magnificent trees! The banks of the Belon are very pleasant. This route is recommended in strong winds or bright sunshine, as it is very shaded.
Not at all busy in April!

Machine-translated

godillot49
godillot49

Overall rating : 4.3 / 5

Date of your route : Aug 20, 2025
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : Yes

the Kergouloüt menhir is not easy to find. The path is hidden among young trees and sometimes you have to go around large fallen trees blocking the way

Machine-translated

Callard
Callard

Overall rating : 5 / 5

Date of your route : Dec 27, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

Beautiful hike5

Machine-translated

RIBIN
RIBIN

Overall rating : 4.3 / 5

Date of your route : Feb 19, 2023
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

An easy and pleasant route, allowing you to discover the fountain and the covered walkway. However, we missed the menhir after getting lost in the woods after the car park while searching in vain for the path...

Machine-translated

Pascal C56
Pascal C56

Overall rating : 5 / 5

Date of your route : Aug 28, 2022
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A very pleasant route between land and sea, especially at high tide on the Belon side. The rising tide at Belon harbour stopped us for quite a while, as we were enthralled by the sight of shellfish and fish settling on the foreshore.
I recommend adapting the direction of the route according to the tide times.

Machine-translated

randonnée79270
randonnée79270

Overall rating : 4 / 5

Date of your route : Oct 24, 2022
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★★ Very good
Very busy route : No

Lovely walk. We got lost at point 2 in the car park. We didn't see the menhir 😪.
Otherwise, it was a very good time.

Machine-translated

Nine 68
Nine 68

Overall rating : 4.7 / 5

Date of your route : Sep 20, 2021
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

We started at low tide, so the views weren't the best, but the tide came in halfway through and we were able to enjoy the scenery more.

Machine-translated

FATHIGAHU
FATHIGAHU

Overall rating : 5 / 5

Date of your route : Jun 30, 2021
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A very pleasant route with little road traffic that I would recommend.

Machine-translated

Joël Bars
Joël Bars

Overall rating : 4.7 / 5

Date of your route : Jun 13, 2021
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

No problem following the route, which is very precise, especially off the GR34

Machine-translated

the bossa
the bossa

Overall rating : 5 / 5

Date of your route : Apr 19, 2021
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

Very good, path near the river is very busy but it's fine

Machine-translated

jemarche72
jemarche72

Overall rating : 5 / 5

Date of your route : Sep 24, 2019
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good

A very beautiful hike with remarkable reminders of the past.
Very pretty views over the Belon.

Machine-translated

caminho
caminho

Thank you for your message.
I forgot one important detail: the Kermeur Bihan covered walkway is not 26 metres long – to my knowledge, there are no walkways of that length in our region – but rather 17 metres, which is common for the most beautiful ones in our Breizh.
Best regards
Caminho

Machine-translated

FLOCH
FLOCH ★

Thank you for this message.
Indeed, I forgot to include this menhir on my route.
You're absolutely right, because I usually try not to overlook any heritage sites on my routes.
I will add it.

Thank you again for your very insightful comment.

Best regards

Machine-translated

caminho
caminho

Overall rating : 5 / 5

Date of your route : Feb 25, 2019
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good

A superb route, albeit a little challenging, through the wooded and rugged terrain bordering the Belon River – but magnificent nonetheless. It takes at least three and a half hours to complete.
It's a shame that the tiny detour to the hamlet of Kergoulouët, which is a must-see, isn't signposted: just 100 metres away, there's a superb menhir waiting for you in a small wood. Together with the magnificent Kermeur Bihan covered walkway, these are two reminders of our history (5,000 years, no less!) that are well worth seeing.

Machine-translated

MADOLEON29
MADOLEON29

Overall rating : 4 / 5

Date of your route : Oct 08, 2018
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good

We set off in the sunshine along the Breton paths, stopped for lunch on the banks of the Belon, and returned at high tide, which caused us a slight problem on arrival as the footpath was under water and we had to walk over mossy rocks. Nevertheless, we returned home very happy with our lovely walk.

Machine-translated

Other walks in the area

For more walks, use our search engine .

The GPS track and description are the property of this route's author. Please do not copy them without permission.